EP0463883A3 - Movable head position controlling device for magnetic recording and reproducing apparatuses - Google Patents

Movable head position controlling device for magnetic recording and reproducing apparatuses Download PDF

Info

Publication number
EP0463883A3
EP0463883A3 EP19910305893 EP91305893A EP0463883A3 EP 0463883 A3 EP0463883 A3 EP 0463883A3 EP 19910305893 EP19910305893 EP 19910305893 EP 91305893 A EP91305893 A EP 91305893A EP 0463883 A3 EP0463883 A3 EP 0463883A3
Authority
EP
European Patent Office
Prior art keywords
magnetic recording
controlling device
head position
movable head
reproducing apparatuses
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19910305893
Other versions
EP0463883A2 (en
EP0463883B1 (en
Inventor
Masato Nagasawa
Eiji Yokoyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2171075A external-priority patent/JP2637609B2/en
Priority claimed from JP3017443A external-priority patent/JP2656389B2/en
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP0463883A2 publication Critical patent/EP0463883A2/en
Publication of EP0463883A3 publication Critical patent/EP0463883A3/en
Application granted granted Critical
Publication of EP0463883B1 publication Critical patent/EP0463883B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/584—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes
    • G11B5/588—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes by controlling the position of the rotating heads
EP91305893A 1990-06-28 1991-06-28 Movable head position controlling device for magnetic recording and reproducing apparatuses Expired - Lifetime EP0463883B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2171075A JP2637609B2 (en) 1990-06-28 1990-06-28 Tracking control system for magnetic reproducing device
JP171075/90 1990-06-28
JP3017443A JP2656389B2 (en) 1991-02-08 1991-02-08 Position control device for movable head in magnetic recording / reproducing device
JP17443/91 1991-02-08

Publications (3)

Publication Number Publication Date
EP0463883A2 EP0463883A2 (en) 1992-01-02
EP0463883A3 true EP0463883A3 (en) 1993-02-03
EP0463883B1 EP0463883B1 (en) 1998-08-19

Family

ID=26353944

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91305893A Expired - Lifetime EP0463883B1 (en) 1990-06-28 1991-06-28 Movable head position controlling device for magnetic recording and reproducing apparatuses

Country Status (4)

Country Link
US (2) US5404252A (en)
EP (1) EP0463883B1 (en)
DE (1) DE69130011T2 (en)
SG (1) SG47005A1 (en)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2717494B2 (en) * 1992-07-17 1998-02-18 三菱電機株式会社 Rotating magnetic head device
JPH0744841A (en) * 1993-07-26 1995-02-14 Sharp Corp Rotary head type magnetic recording and reproducing device
KR960016899B1 (en) * 1993-12-31 1996-12-26 삼성전자 주식회사 Method and device for preventing impact of hdd
JP2616746B2 (en) * 1995-06-12 1997-06-04 日本電気株式会社 Magnetic disk drive
JP3317333B2 (en) * 1997-02-27 2002-08-26 インターナショナル・ビジネス・マシーンズ・コーポレーション Actuator control device and magnetic disk device
JPH11203808A (en) 1998-01-19 1999-07-30 Matsushita Electric Ind Co Ltd Information recording and reproducing device
US6594106B1 (en) 1999-10-29 2003-07-15 International Business Machines Corporation Adaptive servo estimator and compensator for coil and carriage deformation in voice coil motor driven hard disk drive
US6394348B1 (en) * 1999-12-13 2002-05-28 Unisys Corporation Apparatus for positioning magnetically coded substrate relative to a magnetic read head
JP3642720B2 (en) * 2000-06-30 2005-04-27 富士通株式会社 Storage device, tracking control method and tracking control device thereof
US6580581B1 (en) * 2000-08-16 2003-06-17 International Business Machines Corporation Recovery of lateral position of a servo system with respect to longitudinal servo bands of a magnetic tape
US6798608B2 (en) 2002-01-18 2004-09-28 International Business Machines Corporation Active detection and acquisition of a servo track subject to lateral motion
US7414804B1 (en) * 2004-08-30 2008-08-19 Marvell International Ltd. TMR/GMR amplifier with input current compensation
US7203027B2 (en) 2004-11-10 2007-04-10 Certance, Llc System and method for measuring the position of a tape drive head
US7230788B2 (en) * 2004-11-10 2007-06-12 Certance, Llc System and method for tape drive control
US20060103968A1 (en) * 2004-11-12 2006-05-18 Jurneke Joe K Dynamic skew compensation systems and associated methods
US20060285240A1 (en) * 2005-06-16 2006-12-21 Quantum Corporation Environmental watch device for magnetic storage
JP4150032B2 (en) * 2005-06-27 2008-09-17 富士通株式会社 Head position control method, head position control device, and disk device
US7379259B2 (en) * 2005-09-12 2008-05-27 Certance Llc Head actuator design for a low profile tape drive
US7319570B2 (en) * 2005-09-19 2008-01-15 Seagate Technology Llc Random vibration and shock compensator using a disturbance observer
GB0605346D0 (en) * 2006-03-16 2006-04-26 Airbus Uk Ltd Feedback control system
US8677457B2 (en) * 2007-02-09 2014-03-18 Marvell World Trade Ltd. Security for codes running in non-trusted domains in a processor core
JP4150065B1 (en) * 2007-03-12 2008-09-17 日立マクセル株式会社 Magnetic tape unit
US8179629B2 (en) 2007-12-26 2012-05-15 Nitto Denko Corporation Flexure based shock and vibration sensor for head suspensions in hard disk drives
JP2013069358A (en) * 2011-09-20 2013-04-18 Toshiba Corp Magnetic disk device and controlling method of head
KR101449490B1 (en) * 2012-12-06 2014-10-14 포항공과대학교 산학협력단 Sensing Apparatus
GB2517744A (en) 2013-08-30 2015-03-04 Ibm Device for aligning a first element being coupled to an actuator with a second element of a main system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4688109A (en) * 1983-04-04 1987-08-18 Nec Corporation Helical scan tracking apparatus including means for correcting for track curvature
EP0361381A2 (en) * 1988-09-27 1990-04-04 Nec Corporation Actuator velocity control system for moving a magnetic head in a magnetic disk unit and a magnetic disk unit with said system

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3626264A (en) * 1969-08-20 1971-12-07 Information Storage Systems Velocity servosystem
JPS53118012A (en) * 1977-03-24 1978-10-16 Sony Corp Automatic tracking device
FR2466081A1 (en) * 1979-09-21 1981-03-27 Cii Honeywell Bull DEVICE FOR MEASURING SPEED OF A MOBILE SYSTEM IN RELATION TO AN INFORMATION MEDIUM
NL7907219A (en) * 1979-09-28 1981-03-31 Philips Nv APPARATUS FOR RECORDING AND / OR PLAYING MAGNETIC SIGNALS INCLUDED ON A MAGNETIC BAND IN A NUMBER OF PARALLEL LONGITUDINAL TRACKS.
JPS6294249A (en) * 1985-10-17 1987-04-30 Fanuc Ltd Speed controlling system
JPH0834573B2 (en) * 1985-11-20 1996-03-29 株式会社日立製作所 Tracking controller
US4760471A (en) * 1986-04-11 1988-07-26 Ampex Corporation System and method to improve picture quality during shuttling of video tapes
US4679103A (en) * 1986-04-29 1987-07-07 International Business Machines Corporation Digital servo control system for a data recording disk file
JPH01253881A (en) * 1988-04-04 1989-10-11 Hitachi Ltd Positioning speed control system for magnetic head
JPH02121123A (en) * 1988-10-31 1990-05-09 Hitachi Ltd Tape device
US5313347A (en) * 1990-01-12 1994-05-17 Mitsubishi Denki Kabushiki Kaisha Rotating magnetic head for a magnetic recording reproduction system
JP2595752B2 (en) * 1990-03-27 1997-04-02 三菱電機株式会社 Magnetic recording / reproducing device
US5384676A (en) * 1991-04-19 1995-01-24 Mitsubishi Denki Kabushiki Kaisha Magnetic head position controller in a magnetic recording and reproducing apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4688109A (en) * 1983-04-04 1987-08-18 Nec Corporation Helical scan tracking apparatus including means for correcting for track curvature
EP0361381A2 (en) * 1988-09-27 1990-04-04 Nec Corporation Actuator velocity control system for moving a magnetic head in a magnetic disk unit and a magnetic disk unit with said system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 14, no. 1 (P-985)8 January 1990 & JP-A-1 253 881 ( HITACHI LTD ) 11 October 1989 *

Also Published As

Publication number Publication date
DE69130011T2 (en) 1999-02-04
US5566378A (en) 1996-10-15
SG47005A1 (en) 1998-03-20
EP0463883A2 (en) 1992-01-02
EP0463883B1 (en) 1998-08-19
DE69130011D1 (en) 1998-09-24
US5404252A (en) 1995-04-04

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